150221661253 has 8 divisors (see below), whose sum is σ = 159620277888. Its totient is φ = 140885494464.

The previous prime is 150221661221. The next prime is 150221661257. The reversal of 150221661253 is 352166122051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150221661253 - 2⁵ = 150221661221 is a prime.

It is a super-2 number, since 2×150221661253² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150221661257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15607501 + ... + 15617122.

It is an arithmetic number, because the mean of its divisors is an integer number (19952534736).

Almost surely, 2^150221661253 is an apocalyptic number.

It is an amenable number.

150221661253 is a deficient number, since it is larger than the sum of its proper divisors (9398616635).

150221661253 is a wasteful number, since it uses less digits than its factorization.

150221661253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31224923.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 150221661253 in words is "one hundred fifty billion, two hundred twenty-one million, six hundred sixty-one thousand, two hundred fifty-three".